tests/test-array_list.c

   1 /* Test of sequential list data type implementation.
   2    Copyright (C) 2006-2020 Free Software Foundation, Inc.
   3    Written by Bruno Haible <bruno@clisp.org>, 2007.
   4
   5    This program is free software: you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 3 of the License, or
   8    (at your option) any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  17
  18 #include <config.h>
  19
  20 #include "gl_array_list.h"
  21
  22 #include <stdlib.h>
  23
  24 #include "macros.h"
  25
  26 static const char *objects[15] =
  27   {
  28     "a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l", "m", "n", "o"
  29   };
  30
  31 #define RANDOM(n) (rand () % (n))
  32 #define RANDOM_OBJECT() objects[RANDOM (SIZEOF (objects))]
  33
  34 static void
  35 check_equals (gl_list_t list1, gl_list_t list2)
  36 {
  37   size_t n, i;
  38
  39   n = gl_list_size (list1);
  40   ASSERT (n == gl_list_size (list2));
  41   for (i = 0; i < n; i++)
  42     {
  43       ASSERT (gl_list_get_at (list1, i) == gl_list_get_at (list2, i));
  44     }
  45 }
  46
  47 int
  48 main (int argc, char *argv[])
  49 {
  50   gl_list_t list1, list2;
  51
  52   /* Allow the user to provide a non-default random seed on the command line.  */
  53   if (argc > 1)
  54     srand (atoi (argv[1]));
  55
  56   {
  57     size_t initial_size = RANDOM (50);
  58     const void **contents =
  59       (const void **) malloc (initial_size * sizeof (const void *));
  60     size_t i;
  61     unsigned int repeat;
  62
  63     for (i = 0; i < initial_size; i++)
  64       contents[i] = RANDOM_OBJECT ();
  65
  66     /* Create list1.  */
  67     list1 = gl_list_nx_create (GL_ARRAY_LIST, NULL, NULL, NULL, true,
  68                                initial_size, contents);
  69     ASSERT (list1 != NULL);
  70     /* Create list2.  */
  71     list2 = gl_list_nx_create_empty (GL_ARRAY_LIST, NULL, NULL, NULL, true);
  72     ASSERT (list2 != NULL);
  73     for (i = 0; i < initial_size; i++)
  74       ASSERT (gl_list_nx_add_last (list2, contents[i]) != NULL);
  75
  76     check_equals (list1, list2);
  77
  78     for (repeat = 0; repeat < 10000; repeat++)
  79       {
  80         unsigned int operation = RANDOM (18);
  81         switch (operation)
  82           {
  83           case 0:
  84             if (gl_list_size (list1) > 0)
  85               {
  86                 size_t index = RANDOM (gl_list_size (list1));
  87                 const char *obj = RANDOM_OBJECT ();
  88                 gl_list_node_t node1, node2;
  89
  90                 node1 = gl_list_nx_set_at (list1, index, obj);
  91                 ASSERT (node1 != NULL);
  92                 ASSERT (gl_list_get_at (list1, index) == obj);
  93                 ASSERT (gl_list_node_value (list1, node1) == obj);
  94
  95                 node2 = gl_list_nx_set_at (list2, index, obj);
  96                 ASSERT (node2 != NULL);
  97                 ASSERT (gl_list_get_at (list2, index) == obj);
  98                 ASSERT (gl_list_node_value (list2, node2) == obj);
  99
 100                 if (index > 0)
 101                   {
 102                     ASSERT (gl_list_node_value (list1, gl_list_previous_node (list1, node1))
 103                             == gl_list_get_at (list1, index - 1));
 104                   }
 105                 if (index + 1 < gl_list_size (list1))
 106                   {
 107                     ASSERT (gl_list_node_value (list1, gl_list_next_node (list1, node1))
 108                             == gl_list_get_at (list1, index + 1));
 109                   }
 110               }
 111             break;
 112           case 1:
 113             {
 114               const char *obj = RANDOM_OBJECT ();
 115               gl_list_node_t node1, node2;
 116               node1 = gl_list_search (list1, obj);
 117               node2 = gl_list_search (list2, obj);
 118               if (node1 == NULL)
 119                 {
 120                   ASSERT (node2 == NULL);
 121                 }
 122               else
 123                 {
 124                   ASSERT (node2 != NULL);
 125                   ASSERT (gl_list_node_value (list1, node1) == obj);
 126                   ASSERT (gl_list_node_value (list2, node2) == obj);
 127                 }
 128             }
 129             break;
 130           case 2:
 131             {
 132               const char *obj = RANDOM_OBJECT ();
 133               size_t index1, index2;
 134               index1 = gl_list_indexof (list1, obj);
 135               index2 = gl_list_indexof (list2, obj);
 136               if (index1 == (size_t)(-1))
 137                 {
 138                   ASSERT (index2 == (size_t)(-1));
 139                 }
 140               else
 141                 {
 142                   ASSERT (index2 != (size_t)(-1));
 143                   ASSERT (gl_list_get_at (list1, index1) == obj);
 144                   ASSERT (gl_list_get_at (list2, index2) == obj);
 145                   ASSERT (index2 == index1);
 146                 }
 147             }
 148             break;
 149           case 3: /* add 1 element */
 150             {
 151               const char *obj = RANDOM_OBJECT ();
 152               gl_list_node_t node1, node2;
 153               node1 = gl_list_nx_add_first (list1, obj);
 154               ASSERT (node1 != NULL);
 155               node2 = gl_list_nx_add_first (list2, obj);
 156               ASSERT (node2 != NULL);
 157               ASSERT (gl_list_node_value (list1, node1) == obj);
 158               ASSERT (gl_list_node_value (list2, node2) == obj);
 159               ASSERT (gl_list_get_at (list1, 0) == obj);
 160               ASSERT (gl_list_get_at (list2, 0) == obj);
 161             }
 162             break;
 163           case 4: /* add 1 element */
 164             {
 165               const char *obj = RANDOM_OBJECT ();
 166               gl_list_node_t node1, node2;
 167               node1 = gl_list_nx_add_last (list1, obj);
 168               ASSERT (node1 != NULL);
 169               node2 = gl_list_nx_add_last (list2, obj);
 170               ASSERT (node2 != NULL);
 171               ASSERT (gl_list_node_value (list1, node1) == obj);
 172               ASSERT (gl_list_node_value (list2, node2) == obj);
 173               ASSERT (gl_list_get_at (list1, gl_list_size (list1) - 1) == obj);
 174               ASSERT (gl_list_get_at (list2, gl_list_size (list2) - 1) == obj);
 175             }
 176             break;
 177           case 5: /* add 3 elements */
 178             {
 179               const char *obj0 = RANDOM_OBJECT ();
 180               const char *obj1 = RANDOM_OBJECT ();
 181               const char *obj2 = RANDOM_OBJECT ();
 182               gl_list_node_t node1, node2;
 183               node1 = gl_list_nx_add_first (list1, obj2);
 184               ASSERT (node1 != NULL);
 185               node1 = gl_list_nx_add_before (list1, node1, obj0);
 186               ASSERT (node1 != NULL);
 187               node1 = gl_list_nx_add_after (list1, node1, obj1);
 188               ASSERT (node1 != NULL);
 189               node2 = gl_list_nx_add_first (list2, obj2);
 190               ASSERT (node2 != NULL);
 191               node2 = gl_list_nx_add_before (list2, node2, obj0);
 192               ASSERT (node2 != NULL);
 193               node2 = gl_list_nx_add_after (list2, node2, obj1);
 194               ASSERT (node2 != NULL);
 195               ASSERT (gl_list_node_value (list1, node1) == obj1);
 196               ASSERT (gl_list_node_value (list2, node2) == obj1);
 197               ASSERT (gl_list_get_at (list1, 0) == obj0);
 198               ASSERT (gl_list_get_at (list1, 1) == obj1);
 199               ASSERT (gl_list_get_at (list1, 2) == obj2);
 200               ASSERT (gl_list_get_at (list2, 0) == obj0);
 201               ASSERT (gl_list_get_at (list2, 1) == obj1);
 202               ASSERT (gl_list_get_at (list2, 2) == obj2);
 203             }
 204             break;
 205           case 6: /* add 1 element */
 206             {
 207               size_t index = RANDOM (gl_list_size (list1) + 1);
 208               const char *obj = RANDOM_OBJECT ();
 209               gl_list_node_t node1, node2;
 210               node1 = gl_list_nx_add_at (list1, index, obj);
 211               ASSERT (node1 != NULL);
 212               node2 = gl_list_nx_add_at (list2, index, obj);
 213               ASSERT (node2 != NULL);
 214               ASSERT (gl_list_get_at (list1, index) == obj);
 215               ASSERT (gl_list_node_value (list1, node1) == obj);
 216               ASSERT (gl_list_get_at (list2, index) == obj);
 217               ASSERT (gl_list_node_value (list2, node2) == obj);
 218               if (index > 0)
 219                 {
 220                   ASSERT (gl_list_node_value (list1, gl_list_previous_node (list1, node1))
 221                           == gl_list_get_at (list1, index - 1));
 222                 }
 223               if (index + 1 < gl_list_size (list1))
 224                 {
 225                   ASSERT (gl_list_node_value (list1, gl_list_next_node (list1, node1))
 226                           == gl_list_get_at (list1, index + 1));
 227                 }
 228             }
 229             break;
 230           case 7: case 8: /* remove 1 element */
 231             if (gl_list_size (list1) > 0)
 232               {
 233                 size_t n = gl_list_size (list1);
 234                 const char *obj = gl_list_get_at (list1, RANDOM (n));
 235                 gl_list_node_t node1, node2;
 236                 node1 = gl_list_search (list1, obj);
 237                 node2 = gl_list_search (list2, obj);
 238                 ASSERT (node1 != NULL);
 239                 ASSERT (node2 != NULL);
 240                 ASSERT (gl_list_remove_node (list1, node1));
 241                 ASSERT (gl_list_remove_node (list2, node2));
 242                 ASSERT (gl_list_size (list1) == n - 1);
 243               }
 244             break;
 245           case 9: case 10: /* remove 1 element */
 246             if (gl_list_size (list1) > 0)
 247               {
 248                 size_t n = gl_list_size (list1);
 249                 size_t index = RANDOM (n);
 250                 ASSERT (gl_list_remove_at (list1, index));
 251                 ASSERT (gl_list_remove_at (list2, index));
 252                 ASSERT (gl_list_size (list1) == n - 1);
 253               }
 254             break;
 255           case 11: /* remove first element */
 256             {
 257               size_t n = gl_list_size (list1);
 258               bool removed1 = gl_list_remove_first (list1);
 259               ASSERT (gl_list_remove_first (list2) == removed1);
 260               ASSERT (gl_list_size (list1) == n - (int) removed1);
 261             }
 262             break;
 263           case 12: /* remove last element */
 264             {
 265               size_t n = gl_list_size (list1);
 266               bool removed1 = gl_list_remove_last (list1);
 267               ASSERT (gl_list_remove_last (list2) == removed1);
 268               ASSERT (gl_list_size (list1) == n - (int) removed1);
 269             }
 270             break;
 271           case 13: case 14: /* remove 1 element */
 272             if (gl_list_size (list1) > 0)
 273               {
 274                 size_t n = gl_list_size (list1);
 275                 const char *obj = gl_list_get_at (list1, RANDOM (n));
 276                 ASSERT (gl_list_remove (list1, obj));
 277                 ASSERT (gl_list_remove (list2, obj));
 278                 ASSERT (gl_list_size (list1) == n - 1);
 279               }
 280             break;
 281           case 15:
 282             if (gl_list_size (list1) > 0)
 283               {
 284                 size_t n = gl_list_size (list1);
 285                 const char *obj = "xyzzy";
 286                 ASSERT (!gl_list_remove (list1, obj));
 287                 ASSERT (!gl_list_remove (list2, obj));
 288                 ASSERT (gl_list_size (list1) == n);
 289               }
 290             break;
 291           case 16:
 292             {
 293               size_t n = gl_list_size (list1);
 294               gl_list_iterator_t iter1, iter2;
 295               const void *elt;
 296               iter1 = gl_list_iterator (list1);
 297               iter2 = gl_list_iterator (list2);
 298               for (i = 0; i < n; i++)
 299                 {
 300                   ASSERT (gl_list_iterator_next (&iter1, &elt, NULL));
 301                   ASSERT (gl_list_get_at (list1, i) == elt);
 302                   ASSERT (gl_list_iterator_next (&iter2, &elt, NULL));
 303                   ASSERT (gl_list_get_at (list2, i) == elt);
 304                 }
 305               ASSERT (!gl_list_iterator_next (&iter1, &elt, NULL));
 306               ASSERT (!gl_list_iterator_next (&iter2, &elt, NULL));
 307               gl_list_iterator_free (&iter1);
 308               gl_list_iterator_free (&iter2);
 309             }
 310             break;
 311           case 17:
 312             {
 313               size_t end = RANDOM (gl_list_size (list1) + 1);
 314               size_t start = RANDOM (end + 1);
 315               gl_list_iterator_t iter1, iter2;
 316               const void *elt;
 317               iter1 = gl_list_iterator_from_to (list1, start, end);
 318               iter2 = gl_list_iterator_from_to (list2, start, end);
 319               for (i = start; i < end; i++)
 320                 {
 321                   ASSERT (gl_list_iterator_next (&iter1, &elt, NULL));
 322                   ASSERT (gl_list_get_at (list1, i) == elt);
 323                   ASSERT (gl_list_iterator_next (&iter2, &elt, NULL));
 324                   ASSERT (gl_list_get_at (list2, i) == elt);
 325                 }
 326               ASSERT (!gl_list_iterator_next (&iter1, &elt, NULL));
 327               ASSERT (!gl_list_iterator_next (&iter2, &elt, NULL));
 328               gl_list_iterator_free (&iter1);
 329               gl_list_iterator_free (&iter2);
 330             }
 331             break;
 332           }
 333         check_equals (list1, list2);
 334       }
 335
 336     gl_list_free (list1);
 337     gl_list_free (list2);
 338     free (contents);
 339   }
 340
 341   return 0;
 342 }